• Success Criterion 1.2.2
  • Conformance level A

Shared Social Video With No Caption Support at All

1.2.2 — Captions (Prerecorded)

Scenario

Setting

An online marketplace's seller dashboard

What’s wrong

Third-party embeds (social videos) republished without caption support.

Example 

<div class="seller-promo">
  <!-- Original clip had burned-in captions on the source platform, but
       this embed strips them via a caption-free rendering endpoint -->
  <iframe src="https://social-video-cdn.example.com/embed/98213" frameborder="0"></iframe>
</div>

Why it matters

A deaf shopper browsing a seller's storefront can't access any captions on the promo video, since the marketplace's embed strips out captions the seller already added.

How to test

Find embedded social media videos on the page: if they have audio and no caption option at all, it fails.

How to fix

Before republishing a third-party video, confirm the embed actually preserves or exposes captions, not just the video pixels.

<div class="seller-promo">
  <iframe src="https://social-video-cdn.example.com/embed/98213?cc=1" frameborder="0"></iframe>
</div>
<!-- Longer term: require sellers to upload a caption file so the
     marketplace can render captions natively, independent of the
     source platform's embed options -->

Outcome

A deaf shopper watches a seller's promo clip with captions intact and understands the product demo fully.

Who is affected

Deaf and hard-of-hearing shoppers viewing embedded seller videos lose captioning that existed on the source platform simply because of how it's republished.

Learn more

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